diff --git a/core/binary.mk b/core/binary.mk
index 81513f549..de908e358 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -797,8 +797,7 @@ endif
 asm_objects := $(asm_objects_S) $(asm_objects_s)
 
 
-# .asm for x86 needs to be compiled with yasm.
-ifeq (x86,$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH))
+# .asm for x86/x86_64 needs to be compiled with yasm.
 asm_sources_asm := $(filter %.asm,$(my_src_files))
 ifneq ($(strip $(asm_sources_asm)),)
 asm_objects_asm := $(addprefix $(intermediates)/,$(asm_sources_asm:.asm=.o))
@@ -808,7 +807,6 @@ $(asm_objects_asm): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.asm \
 
 asm_objects += $(asm_objects_asm)
 endif
-endif
 
 
 ##########################################################
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index e22500e51..f17a514fa 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -147,3 +147,5 @@ $(combo_2nd_arch_prefix)TARGET_STRIP_MODULE:=true
 $(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm
 
 $(combo_2nd_arch_prefix)TARGET_LINKER := /system/bin/linker
+
+$(combo_2nd_arch_prefix)TARGET_GLOBAL_YASM_FLAGS := -f elf32 -m x86
diff --git a/core/combo/TARGET_linux-x86_64.mk b/core/combo/TARGET_linux-x86_64.mk
index 046a42bb5..c945b3e70 100644
--- a/core/combo/TARGET_linux-x86_64.mk
+++ b/core/combo/TARGET_linux-x86_64.mk
@@ -153,3 +153,5 @@ TARGET_STRIP_MODULE:=true
 TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm
 
 TARGET_LINKER := /system/bin/linker64
+
+TARGET_GLOBAL_YASM_FLAGS := -f elf64 -m amd64
diff --git a/core/definitions.mk b/core/definitions.mk
index 4bc51d309..fb91e1367 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -1051,7 +1051,7 @@ define transform-asm-to-o
 @mkdir -p $(dir $@)
 $(hide) $(YASM) \
     $(addprefix -I , $(PRIVATE_C_INCLUDES)) \
-    -f elf32 -m x86 \
+    $($(PRIVATE_2ND_ARCH_VAR_PREFIX)TARGET_GLOBAL_YASM_FLAGS) \
     $(PRIVATE_ASFLAGS) \
     -o $@ $<
 endef